Keyboard



FIG. 1 is a top perspective view of a keyboard;

FIG. 2 is a left side view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a right side perspective view thereof.

The bottom of the keyboard is generally flat and devoid of surface ornamentation except for the small supports shown in FIG. 2. 

The ornamental design for a keyboard, as shown and described. 